<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>原型作用</title>
</head>
<body>
    <script>
        function Person() {
            this.name = '李四';
            // this.say = function () {
            //     console.log('hihi');
            // };
        }
        // Person.prototype.name = '张三';
        Person.prototype.say = function () {
            console.log('hello');
        };
        var person = new Person();
        console.log(person.name);
        person.say();
    </script>
</body>
</html>